If it wasn't a family business before, this should make it all but official.

After four decades at the helm of Paulus, Sokolowski & Sartor, Anthony Sartor has stepped aside as CEO of the well-respected, Warren-based engineering and architecture firm. And he has turned the job over to his son, John Sartor, who has logged 23 years of his own with the company and has served as its president since late 2012.